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Black C - 33
Deep Black Antique for Copper and Brass |
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Black C-33 is a concentrated liquid for
producing a deep black color tones on Copper, brass & bronze at room
temperature. Black C-33 is used primarily for decorative purposes to
produce a deep black color finish.
| OPERATING CONDITIOINS: |
| Concentration: |
1 part Black C-33 to 1 part of water. |
| Temperature: |
65º - 75º F. |
| Time: |
10 - 60 seconds by immersion, spray or rag. |
| Tank: |
Acid resistant containers (plastic, P.V.C. or Polyethylene) |
Color Formation:
Color formation is depended upon time of immersion and concentration of solution. For a dark black finish, dilute the solution with 1 part of water and the immersion time should be 10-60 seconds depending on the desired color.
Surface Preparation:
Parts should be free of grease, alkalinity or acidity when immersed
in Black C-33 solution.
- Clean the part with Cleaner 104.
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- Immerse pieces in Black C-33 for the time necessary
to achieve the desired color. For small parts, stainless steel
or plastic baskets should be used and often simple tumbling
is enough.
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- Rinse thoroughly with over flowing cold water, to stop chemical reaction.
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- The finish is easily relieved by brushing or by mechanical polishing to produce a variety of antique finishes. To produce a uniformly colored finish, tumble or vibrate the parts in sawdust. Large pieces can be wiped dry or buffed.
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- It is recommended that a clear water base lacquer (e.g. WSL-55) be applied to the coating to provide maximum life.
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Bath Maintenance:
Since blackening with Black C-33 is a chemical reaction between
the solution and metal surface, the chemical activity will diminish
as the solution is used. When the time required to produce the desired
color increases, add 5% by volume of Triblack C-33 liquid concentrate.
Caution:
The Black C-33 is a mildly acidic solution. Avoid contact
with the skin or eyes. Protective clothing, gloves, and a face shield
should be worn when operating. In case of contact, flush skin or eyes
with plenty of water. For eyes, call a physician. Black C-33 liquid
is poisonous; do not take internally!
The information stated herein is based on information and test we believe to be reliable. The accuracy or completeness thereof is not guaranteed. Since conditions of use are outside our control, user shall, before using, determine the suitability of the product for his intended use and user assumes all risk and liability whatsoever in connection therewith.
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